Etronix Photon 2.1FW System W/9.0r 4350kv Motor/45A ESC ET0417

Overview

The Etronix Photon 2.1FW System with 9.0R 4350kV Motor and 45A ESC (ET0417) brings the convenience and performance of brushless technology within reach of every RC enthusiast. Whether you're upgrading from a brushed setup or looking for your first brushless RC car UK experience, this sensorless waterproof system delivers straightforward power and reliability. The Photon represents an ideal choice for 1/10th scale buggies, trugies, short course trucks and other off-road vehicles, offering the perfect balance between performance, ease of setup, and affordability.

Simple to set up yet feature-rich in its capabilities, the Etronix Photon 2.1FW is an excellent brushless RC system for drivers of all abilities. The included ET0107 LED programming card allows you to fine-tune ten different parameters within the ESC, letting you tailor throttle feel, braking response, and acceleration to match your exact driving style and vehicle setup. This level of customisation means you're not locked into one configuration—you can adjust your ready to run RC setup as you progress and refine your driving techniques.

Built with waterproof construction, this brushless ESC combo is ready for serious off-road action. The 45A continuous current rating with an impressive 260A burst capacity ensures smooth power delivery across a wide range of driving conditions. Paired with the included 9.0R 4350kV four-pole sensorless brushless motor, this system delivers the responsive performance that makes RC buggies, trugies and short course trucks so engaging to drive.

Key Features

• Waterproof Sensorless Brushless System — The waterproof design protects your electronics from mud, water and dust, making this ideal for outdoor RC car UK adventures regardless of weather conditions. Sensorless technology eliminates the need for complex sensor wiring, simplifying installation and reducing potential points of failure.
• ET0107 LED Programming Card Included — The supplied Etronix Photon SBS LED programming card provides fast, intuitive setup without needing a computer or complex software. The LED interface guides you through configuration quickly and precisely, making it accessible even if you're new to brushless systems.
• Ten User-Adjustable Parameters — With ten different settings you can fine-tune, you have complete control over how your RC vehicle responds. Adjust cutoff voltage, running mode, motor timing, initial acceleration, throttle reverse percentage, throttle limit, braking percentage, drag brake, motor rotation and neutral range deadband to create the perfect setup for your driving style.
• 45A Continuous with 260A Burst Current — The robust 45A continuous current rating delivers reliable power for sustained driving, whilst the 260A burst capacity provides dramatic acceleration when you need it. This combination ensures smooth, controllable power delivery whether you're cruising or pushing hard.
• 6V/2A BEC Output — The onboard battery eliminator circuit provides clean, regulated 6V at 2A, sufficient to power your receiver and servo systems without requiring a separate battery. This simplifies your RC setup and reduces overall system weight.
• 9.0R 4350kV Four-Pole Motor — The included motor is specifically optimised for this 45A ESC, with a four-pole design for smooth operation. The 4350kV rating is perfect for 2S LiPo batteries, delivering responsive acceleration and impressive top speed in lightweight 1/10th scale applications.
• 2–3S LiPo or 5–10S NiMH/NiCd Compatibility — This versatile system works with modern LiPo batteries or traditional NiMH/NiCd packs, giving you flexibility in battery choice. The auto-detecting cutoff voltage means the ESC automatically recognises your cell count and applies appropriate voltage limits to protect your battery.

Technical Performance

The Etronix Photon 2.1FW delivers impressive technical specifications in a compact, user-friendly package. At its core sits the 45A ESC—a genuinely continuous current rating (not peak), which means you can sustain full throttle driving without the ESC throttling back or overheating. The 260A burst current provides that extra kick for explosive acceleration when you need it, whether launching off the line or powering over obstacles. The four-pole sensorless brushless motor running at 4350kV pairs perfectly with 2–3S LiPo batteries; the 9.0R winding delivers the high RPM needed for speed-focused applications on lightweight buggy platforms. The motor's 3.2mm bore is the industry-standard size for 540 motors in 1/10th scale RC cars. Build quality throughout is solid, with the waterproof ESC enclosure protecting all sensitive electronics from the inevitable mud, water and dust encountered in genuine off-road driving. The 6V/2A BEC output is sufficient for most standard servo setups and receiver combinations, and the auto-cell detection on the cutoff voltage system means one ESC safely handles both 2S and 3S battery packs without adjustment. The system's versatility extends to battery compatibility—whilst optimised for 2–3S LiPo, it also works with NiMH and NiCd packs up to 10 cells, making it perfect if you're transitioning from older battery technology or have existing packs you want to reuse. Note that this system is not compatible with 4S batteries.

What's in the Box

• Photon 2.1FW 45A waterproof ESC
• 9.0R 4350kV four-pole sensorless brushless motor
• Etronix Photon SBS LED Programming Card (ET0107)

What You Need to Complete

• Soldering equipment and solder for connecting power wires and motor wires to the ESC and vehicle
• LiPo battery pack (2–3S) or NiMH/NiCd pack (5–10S cells)
• Battery balance charger suitable for your chosen battery chemistry
• RC car chassis with 1/10th scale compatible layout
• Receiver and steering servo compatible with 6V power supply

Frequently Asked Questions

• Is the Etronix Photon 2.1FW suitable for brushless beginners? — Yes, absolutely. This system is specifically designed as an accessible entry point into brushless RC technology. The included LED programming card makes setup straightforward compared to complex computer software interfaces, and the ten adjustable parameters give you room to learn without overwhelming you with options. Start with sensible default settings and adjust as you gain experience.
• What battery does the Etronix Photon 2.1FW need? — The system is optimised for 2–3S LiPo batteries, with the included 4350kV motor performing best on 2S (7.4V). It also works with 5–10S NiMH/NiCd packs if you have legacy batteries, though a 7-cell NiMH (8.4V) pack is recommended for best performance. The ESC will not function with 4S batteries, so avoid that configuration regardless of your setup.
• Can I run this on 3S LiPo? — Yes, you can run 3S LiPo (11.1V), but with important caveats. With a 3S pack, you should ideally step down to the included motor or use a lower KV motor (2950kV recommended), as the combination of high KV and high voltage will generate excessive motor heat. If running 3S, monitor motor temperature closely and consider a 60A or 80A ESC instead of the 45A version for better thermal management. Most users find 2S provides the sweet spot of performance and reliability.
• What vehicles is this combo suitable for? — The Etronix Photon 2.1FW is ideal for 1/10th scale buggies, trugies, short course trucks and standard off-road trucks. It's particularly well-suited to lightweight platforms where the high 4350kV rating will deliver excellent top speed. Check your vehicle's recommended ESC and motor specifications before purchasing to confirm compatibility.
• How does the 9.0R motor compare to the 11.0R and 13.0R versions? — The 9.0R winding has the fewest turns, resulting in the highest KV (4350kV) and therefore the highest top speed. The 11.0R (3450kV) and 13.0R (2950kV) versions have progressively more turns, lower KV ratings, and better torque characteristics. Choose 9.0R for speed-focused applications on flat terrain, 11.0R for balanced performance, and 13.0R for technical driving or heavier vehicles.
• What's the difference between the Photon 2.1FW and other Photon versions? — The 2.1FW designation indicates this is the forward/reverse waterproof variant with the 45A rating. Other Photon systems include the higher-capacity 3.0 series with 50A and 60A options, suited for heavier vehicles or more demanding applications. The 2.1FW is the entry-level option, perfect for upgrading from brushed systems or starting out with brushless technology.
• Do I need to solder anything? — Yes, the power wires and motor wires require soldering to connect the ESC to your battery and motor. This is a straightforward soldering job, but you'll need basic soldering equipment and some experience with soldering. If you're uncomfortable soldering, most RC shops including RC Model Shop can perform this service for you.
• Is this waterproof enough for wet conditions? — The ESC features waterproof construction, making it suitable for muddy and wet off-road environments. However, complete waterproofing of an RC vehicle also requires waterproof receiver, servo and motor components. The Photon 2.1FW ESC itself will handle splashing and mud, but for serious water crossings, ensure your other electronics are also waterproofed.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Etronix Photon 2.1FW System W/9.0r 4350kv Motor/45A ESC ET0417 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.